Not the OP, but this is an interesting question; So you'd have to save at least 72k per year for 35 years. That would put you on the 45% tax in my country so you'd have to make 131k to be left with 72k after tax. Maybe +30k to live on, assuming you commute out of the city. So OP should be on something above 161k.

In the US the OP would be in the top 3% of earners, top 4% in the UK. Even if you are in the top few percent you still have to spend most of your life working to be 'free' for a bit at the end of it.

Of course if you are inside the top 1% you could probably get away with a 10-15 year sentence. Where the average wage is generally life with a few years of poverty like freedom at the end.